Idaho State Tax Deductions

Idaho offers several state tax deductions and credits that can help reduce your taxable income and lower the amount of state tax you owe.

The most important thing to understand is that Idaho generally conforms closely to federal tax law, which means many deductions mirror what you claim on your federal return.

Idaho Standard Deduction

Idaho generally follows the federal standard deduction amounts based on your filing status.

Standard Deduction

• Single or Married Filing Separately → $15,750
• Married Filing Jointly → $31,500
• Head of Household → $23,625

The figures are estimated based on expected annual inflation adjustments and may be updated by the IRS and Idaho before filing season.

Example: If you earn $80,000 as a single filer in 2025, subtract the $15,750 standard deduction first. This leaves $64,250 of Idaho taxable income.

Example: If you earn the same amount in 2026 and the deduction increases to an estimated $16,200, your taxable income would be reduced to $63,800.

Idaho Itemized Deductions

Idaho also allows itemized deductions, and in some cases, you may itemize on your Idaho return even if you took the standard deduction on your federal return.

Common itemized deductions may include:

• Mortgage interest
• Charitable contributions
• Medical expenses above the allowed threshold
• State and local taxes, subject to federal limits

This flexibility can help taxpayers reduce Idaho taxable income.

Additional Idaho Deductions

Idaho offers several deductions that may apply.

These may include:

• Enhanced senior deduction
• Deduction for tips from wages
• Deduction for overtime compensation
• Deduction for qualified car loan interest

These can be especially valuable for workers, retirees, and taxpayers with larger deductible expenses.

Example: A taxpayer age 65 or older may qualify for the regular standard deduction plus an additional senior deduction, which can significantly reduce taxable income.

Idaho Tax Credits vs Deductions

It is important to distinguish deductions from credits.

• Deductions reduce taxable income
• Credits reduce the actual tax owed

Popular Idaho credits may include:

• Food Tax Credit
• Educational Charities Credit
• Child-related tax credits

Electronic Filing Recommendation 💻

• Use tax software to automatically apply Idaho deductions and credits
• Compare standard vs itemized deductions each year
• Checks updated 2026 deduction amounts before filing
• E-file for faster refunds and fewer calculation errors

Summary

Idaho generally follows federal deduction rules, including the standard deduction and many itemized deductions.

Reviewing your filing status, deduction options, and available credits each year can help reduce your Idaho tax bill and maximize your refund.